Vaughan, E. J., & Vaughan, T. (2003). Fundamentals of risk and insurance (9th ed.). John Wiley.
Dyfyniad Arddull ChicagoVaughan, Emmett J., and Therese Vaughan. Fundamentals of Risk and Insurance. 9th ed. New York: John Wiley, 2003.
Dyfyniad MLAVaughan, Emmett J., and Therese Vaughan. Fundamentals of Risk and Insurance. 9th ed. John Wiley, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.